Benzene, 2-iodo-1,3-dimethyl- → 1-(2-{[3-(2,6-dimethylphenyl)-2-propynyl]oxy}ethyl)-1H-imidazo[4,5-c]quinolin-4-amine

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Using the general method of Example7, 1-[2-(2-propynyloxy)ethyl]-1H-imidazo[4,5-c]quinolin-4-amine (0.50 g, 1.88 mmol) was reacted with 2,6-dimethyl iodobenzene (0.61 g, 2.63 mmol). The crude product was purified by column chromatography eluting with 95/5 dichloromethane/methanol to provide 0.056 g of 1-(2-{[3-(2,6-dimethylphenyl)-2-propynyl]oxy}ethyl)-1H-imidazo[4,5-c]quinolin-4-amine as a solid, m.p. 200-201° C.

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